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Altera_Forum's avatar
Altera_Forum
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17 years ago

unable to scan device chain. cann't scan jtag chain

Hi, I am using Nios II Embedded Evaluation Kit (Cyclone III - EP3C25F324C6NES). Though it is having direct programming capability through the Usb cable. I like to test the Program...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

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Hi,

I already programmed with the default USB ...

There is no issue with the default USB .. But I am trying to work out with the JTAG as well..

So, pelase let me know how to work with the JTAG...

Thanks ,

Srinath.

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Hi Srinth,

I found in the manual ( Version June 2008)

JP8 Removing the shunt enables configuration of the Cyclone III

device using the JTAG header and an external USB-Blaster.

When the shunt is in place, the embedded USB-Blaster circuitry

must be used to configure the Cyclone III device. (The board

ships without the JTAG header populated.)